Just wash your hair on the top of the head is very oily may be the reason why the scalp is not clean, may also be caused by seborrheic dermatitis. 1. If you just wash your head on the top of the head oil, need to pay attention to the scalp is not clean, usually wash your hair should pay attention to clean the top of the head, the use of cleaning power appropriate shampoo, try to choose warm water to wash your hair. 2. In addition, if there is seborrheic dermatitis, can appear scalp sebum secretion abnormal phenomenon, very easy to head oil phenomenon, usually can use containing coal tar, ketoconazole and other shampoos, try to eat a light diet, reduce the intake of fried greasy food, regular work and rest, can reduce sebum secretion. If the phenomenon of excessive oil on the head continues without relief, it is recommended to go to the hospital in time, the use of the above drugs should follow the doctor’s instructions.